Table 1.
Patient characteristics by ART outcome
| Characteristic | All patients(n = 22,135) | Live birth(n = 14,694) | Non-live birth(n = 7441) |
|---|---|---|---|
| Age(years) | 30.9 ± 4.68 | 29.97 ± 3.87 | 32.71 ± 5.52 |
| Duration of infertility (years) | 3.53 ± 2.72 | 3.34 ± 2.40 | 3.90 ± 3.23 |
| Type of infertility, n (%) | |||
| Primary | 14,220(64.2%) | 9776(66.5%) | 4444(59.7%) |
| Secondary | 7915(35.8%) | 4918(33.5%) | 2997(40.3%) |
| Cause of infertility, n (%) | |||
| Tubal | 11,064(50.1%) | 7585(51.6%) | 3479(46.8%) |
| Ovulatory | 2266(10.2%) | 1807(12.3%) | 459(6.2%) |
| Male | 3733(16.8%) | 2514(17.1%) | 1219(16.4%) |
| DOR | 1161(5.2%) | 558(3.8%) | 603(8.1%) |
| Endometriosis | 1973(8.9%) | 1350(9.2%) | 623(8.4%) |
| Uterine disease | 568(2.6%) | 347(2.4%) | 221(3.0%) |
| Unexplained | 1370(6.1%) | 533(3.6%) | 837(11.1%) |
| BMI (kg/m 2 ) | 21.88 ± 2.95 | 21.80 ± 2.93 | 22.09 ± 3.02 |
| Number of mature oocytes, n (%) | |||
| 1–3 | 2326(10.5%) | 508(3.5%) | 1818(24.4%) |
| 4–8 | 6737(30.4%) | 3673(25.0%) | 3064(41.2%) |
| 9–14 | 7910(35.7%) | 6002(40.8%) | 1908(25.6%) |
| ≥15 | 5162(23.4%) | 4511(30.7%) | 651(8.7%) |
| FSH (mIU/mL) | 7.71 ± 2.78 | 7.37 ± 2.25 | 8.36 ± 3.51 |
| P(ng/ml) | 0.94 ± 0.71 | 0.95 ± 0.61 | 0.92 ± 0.90 |
| Insemination method, n (%) | |||
| IVF | 15,105(68.2%) | 10,177(69.3%) | 4928(66.2%) |
| ICSI | 7030(31.8%) | 4517(30.7%) | 2513(33.8%) |
| Down-regulation method, n (%) | |||
| Long GnRH agonist | 8797(39.9%) | 6620(45.0%) | 2207(29.7%) |
| GnRH-antagonist | 5351(24.3%) | 2743(18.7%) | 2638(35.4%) |
| Daily GnRH-agonist | 7897(35.8%) | 5331(36.3%) | 2596(34.9%) |
| No. of transferred blastocyst, n | 1.01 ± 0.83 | 1.10 ± 0.80 | 0.84 ± 0.85 |
Values are expressed as mean ± SD for continuous variables and n (%) for categorical variables
DOR = diminished ovarian reserve; BMI = body mass index; FSH = follicle-stimulating hormone; P = Progesterone; ICSI = intracytoplasmic sperm injection; GnRH = gonadotropin-releasing hormone